KR101659559B1 - Coil structure of open ventilated type stereoscopic wound-core dry-type transpormer - Google Patents

Coil structure of open ventilated type stereoscopic wound-core dry-type transpormer Download PDF

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KR101659559B1
KR101659559B1 KR1020140178027A KR20140178027A KR101659559B1 KR 101659559 B1 KR101659559 B1 KR 101659559B1 KR 1020140178027 A KR1020140178027 A KR 1020140178027A KR 20140178027 A KR20140178027 A KR 20140178027A KR 101659559 B1 KR101659559 B1 KR 101659559B1
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coil
insulating
coil structure
fixing
fixed
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KR20160012874A (en
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카이쉬엔 쉬
칭닝 량
단쥐 송
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하이홍 일렉트릭 컴퍼니 리미티드
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/2871Pancake coils
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/2823Wires
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/02Casings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/08Cooling; Ventilating
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/30Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/30Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306Fastening or mounting coils or windings on core, casing or other support
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/32Insulating of coils, windings, or parts thereof
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/32Insulating of coils, windings, or parts thereof
    • H01F27/323Insulation between winding turns, between winding layers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/32Insulating of coils, windings, or parts thereof
    • H01F27/324Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/32Insulating of coils, windings, or parts thereof
    • H01F27/324Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H01F27/325Coil bobbins

Abstract

본 발명은 일종의 오픈식 입체권철심 건식변압기의 코일구조에 관한 것이며, 도선으로 권취되는 코일판과 고정유닛을 포함하고, 상기 고정유닛에는 상기 코일판을 고정시키는 끼움홈이 형성되며, 상기 고정유닛에 의하여 상기 코일판이 고정되고 둘러싸여 코일구조가 이루어지고, 상기 도선의 외층에는 절연페인트를 가진 절연종이로 감싸져 있으며, 상기 절연페인트에 의하여 상기 도선의 사이 및 상기 코일판과 상기 고정유닛의 사이에 접착되어 일체형 구조로 이루어진다. 상기 코일구조는 페인트 담금고정을 거치지 않으므로 공정이 간편하고, 절연종이의 절연페인트에 의하여 도선 사이 및 코일판과 고정유닛의 사이에 접착되므로 구조가 견고하며, 전력설비에 필요한 전기성능과 기계성능, 그리고 절연성능을 달성할 수 있다.The present invention relates to a coil structure of a type of open type solid iron core dry type transformer, and includes a coil plate wound around a conductor and a fixed unit, a fitting groove for fixing the coil plate is formed in the fixed unit, Wherein the coil plate is fixed and surrounded by a coil structure, and the outer layer of the lead wire is surrounded by an insulating paper having an insulating paint, and the insulating paint is used to adhere the lead wires and between the coil plate and the fixed unit So as to have an integral structure. Since the coil structure is not subjected to fixing of the paint immersion, the process is simple, and the insulating paint of the insulating paper bonds between the wires and between the coil plate and the fixing unit, so that the structure is robust, And insulation performance can be achieved.

Description

오픈식 입체권철심 건식변압기의 코일구조{COIL STRUCTURE OF OPEN VENTILATED TYPE STEREOSCOPIC WOUND-CORE DRY-TYPE TRANSPORMER}BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil structure of an open-type solid iron core dry transformer,

본 발명은 전력설비 기술분야에 관한 것이며, 특히 오픈식 입체권철심 건식 변압기의 코일구조에 관한 것이다.FIELD OF THE INVENTION The present invention relates to the field of power plant technology, and more particularly to the coil structure of an open-ended solid iron core dry-type transformer.

현재, 종래의 오픈식 변압기의 코일구조는 코일이 권취된 후에 진공건조를 해야 하고, 건조된 코일은 진공압력설비에 의하여 진공 페인트 담금 공정을 거쳐야 하며, 페인트 담금 공정이 완료된 후에 페인트도포 및 건조처리 공정을 진행해야만 코일의 방습성능 및 전기성능을 보장할 수 있다. 따라서, 공정시간이 길고, 페인트 도포공정 중에 많은 페인트를 낭비하게 되며, 공정효율이 낮고, 생산원가가 높다는 문제점이 있다. At present, the coil structure of a conventional open-type transformer must be vacuum dried after the coil is wound, and the dried coil must undergo a vacuum paint deposition process by a vacuum pressure equipment. After the paint deposition process is completed, It is possible to ensure the moisture-proof performance and electric performance of the coil. Therefore, there is a problem that the process time is long, a lot of paint is wasted during the paint application process, the process efficiency is low, and the production cost is high.

상기 문제점을 해결하기 위하여, 본 발명의 목적은 코일의 페인트 담금 공정으로 인해 공정시간이 길고, 많은 절연 페인트가 낭비되는 문제점을 해결할 수 있으며, 생산효율을 대폭으로 향상시킬 수 있는 오픈식 입체권철심 건식변압기의 코일구조를 제공함에 있다.SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to solve the problem that a process time is long and a lot of insulating paint is wasted due to a process of coating a coil with a paint, Thereby providing a coil structure of the transformer.

상기 목적을 달성하기 위하여, 본 발명의 오픈식 입체권철심 건식변압기의 코일구조는 도선으로 권취되는 코일판과 고정유닛을 포함하고, 상기 고정유닛에는 상기 코일판을 고정시키는 끼움홈이 형성되며, 상기 고정유닛에 의하여 상기 코일판이 고정되고 둘러싸여 코일구조가 이루어지고, 상기 도선의 외층에는 절연페인트를 가진 절연종이로 감싸져 있으며, 상기 절연페인트에 의하여 상기 도선의 사이 및 상기 코일판과 상기 고정유닛의 사이에 접착되어 일체형 구조로 이루어진다.In order to achieve the above object, the coil structure of the open type solid iron core dry type transformer of the present invention includes a coil plate wound around a conductor wire and a fixed unit, a fitting groove for fixing the coil plate is formed in the fixed unit, Wherein the coil plate is fixed and surrounded by a fixing unit to form a coil structure, the outer layer of the lead wire is surrounded by an insulating paper having an insulating paint, Thereby forming an integral structure.

바람직하게는, 상기 고정유닛의 끼움홈은 동등한 간격으로 설치되므로 상기 코일판은 서로 이격되어 기류통로가 형성된다.Preferably, the fitting grooves of the fixed unit are provided at equal intervals, so that the coil plates are spaced from each other to form an airflow passage.

바람직하게는, 상기 고정유닛은 절연재질이다.Preferably, the fixed unit is an insulating material.

바람직하게는, 상기 코일구조는 절연통 또는 변압기본체에 고정된다.Preferably, the coil structure is fixed to the insulating cylinder or transformer body.

본 발명의 오픈식 입체권철심 건식변압기의 코일구조에 의하면, 코일판은 절연 페인트를 가진 절연종이로 감싸져 있고, 고정유닛에 의하여 코일판이 고정되고 코일구조가 형성되며, 페인트 담금고정을 거치지 않으므로 공정이 간편하고, 절연종이의 절연페인트에 의하여 도선 사이 및 코일판과 고정유닛의 사이에 접착되므로 구조가 견고하며, 전력설비에 필요한 전기성능과 기계성능, 그리고 절연성능을 달성할 수 있다. According to the coil structure of the open type three-dimensional iron core dry transformer of the present invention, the coil plate is wrapped with insulating paper having insulating paint, the coil plate is fixed by the fixing unit, the coil structure is formed, This simple, insulating paper is bonded between the wires and between the coil plate and the fixed unit by the insulating paint, so that the structure is robust and electrical performance, mechanical performance, and insulation performance required for electric power facilities can be achieved.

이하, 첨부도면을 통하여 본 발명의 실시예에 대해 상세히 설명한다.
도 1은 본 발명의 코일구조의 구조도;
도 2는 본 발명의 코일구조의 조합구조도.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
1 is a structural view of a coil structure of the present invention;
Fig. 2 is a combination structural view of the coil structure of the present invention. Fig.

도 1 및 도 2에 도시된 바와 같이, 본 발명의 오픈식 입체권철심 건식 변압기의 코일구조는 코일판(1)과 고정유닛(2)을 포함하고, 코일판(1)은 외층에 절연종이를 감싸는 도선으로 권취되어 이루어지며, 절연종이를 미리 절연 페인트에 담그고, 절연종이의 내부 및 표면에 필요한 절연 페인트의 함유량이 도포되고 도선 사이의 절연성을 보장할 수 있도록 한다. 고정유닛(2)에는 코일판(1)을 고정하는 끼움홈이 형성되고, 고정유닛(2)에 의하여 코일판(1)은 고정되고 둘러싸여 코일구조가 이루어진다. 끼움홈은 동등한 간격으로 설치되어 코일판(1)의 사이에 기류통로(3)가 형성되므로 방열에 도움이 된다. 1 and 2, the coil structure of the open type solid iron core dry type transformer of the present invention includes a coil plate 1 and a fixed unit 2, and the coil plate 1 has an insulating paper And the insulating paper is preliminarily immersed in the insulating paint so that the content of the insulating paint necessary for the inside and the surface of the insulating paper is applied and the insulation between the wires can be ensured. The fixed unit 2 is formed with a fitting groove for fixing the coil plate 1, and the coil plate 1 is fixed and surrounded by the fixed unit 2 to form a coil structure. The fitting grooves are provided at equal intervals to form the air flow passage 3 between the coil plates 1, which helps heat dissipation.

또한, 절연종이는 코일판(1)과 고정유닛(2) 사이의 절연성을 확보할 수 있고, 코일이 권취된 후에 일정한 온도범위 내에서 일정한 시간이 경과한 후, 절연 페인트는 도선의 사이 및 코일판(1)과 고정유닛(2)의 사이에 접착될 수 있고, 코일구조는 일체형으로 이루어질 수 있으며, 전기성능, 기계성능 및 절연성능을 달성할 수 있다. 상기 코일구조를 절연통 또는 변압기 본체의 기타 부위에 고정하면, 변압기가 정상적으로 운행할 때 또는 비정상적으로 운행할 때 외의 기타 상황에 처할 때 코일의 축방향의 전동력을 감소시킬 수 있으며, 삼각형으로 배열하여 삼상코일구조로 구성될 수 있고, 오픈식 삼상 건식변압기에 적용할 수 있으며, 변압기가 필요한 전기성능, 기계성능 및 절연성능을 달성할 수 있다.The insulating paper can ensure the insulation between the coil plate 1 and the fixed unit 2. After a certain time has elapsed within a certain temperature range after the coil is wound, Can be adhered between the plate (1) and the fixed unit (2), and the coil structure can be formed integrally, and electrical performance, mechanical performance and insulation performance can be achieved. When the coil structure is fixed to the other part of the insulating tube or the transformer main body, it is possible to reduce the axial force of the coil when the transformer is operated normally or in other situations other than the abnormal operation, It can be configured as a three-phase coil structure, can be applied to open three-phase dry type transformers, and the transformer can achieve the required electrical performance, mechanical performance and insulation performance.

따라서, 상술한 실시예는 본 발명의 바람직한 실시예일 뿐이고, 본 발명의 기술특징은 이에 한정되지 않으며, 동등한 방법으로 본 발명의 기술효과를 달성하는 것은 모두 본 발명의 보호범위에 속한다.Therefore, the above-described embodiment is only a preferred embodiment of the present invention, and the technical features of the present invention are not limited thereto, and all of the technical advantages of the present invention are covered by the scope of the present invention.

Claims (4)

도선으로 권취되는 코일판과 고정유닛을 포함하고, 상기 고정유닛에는 상기 코일판을 고정시키는 끼움홈이 형성되며, 상기 고정유닛에 의하여 상기 코일판이 고정되고 둘러싸여 코일구조가 이루어지고, 상기 도선의 외층에는 절연페인트를 가진 절연종이로 감싸져 있으며, 상기 절연종이의 내부 및 표면에 일정한 절연 페인트의 함유량이 도포되고, 코일이 권취된 후 일정한 온도범위 내에서 일정한 시간이 경과하면, 상기 절연페인트에 의하여 상기 도선의 사이 및 상기 코일판과 상기 고정유닛의 사이에 접착되어 일체형 구조로 이루어지고, 상기 코일구조는 일정한 전기 성능, 기계성능 및 절연성능을 가지고;
상기 일체형 구조는 오픈식 삼상 건식변압기에 적용할 수 있도록 삼각형으로 배열하여 삼상코일구조로 구성되며;
상기 고정유닛의 끼움홈은 동등한 간격으로 설치되므로 상기 코일판은 서로 이격되어 기류통로가 형성되고;
상기 고정유닛은 절연재질이며;
상기 코일구조는 절연통 또는 변압기본체에 고정되는 것을 특징으로 하는 오픈식 입체권철심 건식변압기의 코일구조.
And a fixing unit for fixing the coil plate, wherein the fixing unit has a fitting groove for fixing the coil plate, and the coil plate is fixed and surrounded by the fixing unit to form a coil structure, Is coated with an insulating paper having an insulating paint, and a certain amount of insulating paint is applied to the inside and the surface of the insulating paper. When a predetermined time has elapsed within a certain temperature range after the coil is wound, Wherein the coil structure has a constant electrical performance, a mechanical performance, and an insulation performance;
Wherein the integral structure is arranged in a triangular shape so as to be applicable to an open three-phase dry type transformer, and is configured as a three-phase coil structure;
Since the fitting grooves of the fixed unit are installed at equal intervals, the coil plates are spaced from each other to form an air flow passage;
The fixed unit is an insulating material;
Wherein the coil structure is fixed to an insulating cylinder or a transformer main body.
삭제delete 삭제delete 삭제delete
KR1020140178027A 2014-07-25 2014-12-11 Coil structure of open ventilated type stereoscopic wound-core dry-type transpormer KR101659559B1 (en)

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CN201420417073.6U CN204117812U (en) 2014-07-25 2014-07-25 A kind of loop construction of open type three-dimensional wound core dry type transformer
CN201420417073.6 2014-07-25

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KR101659559B1 true KR101659559B1 (en) 2016-09-26

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Publication number Priority date Publication date Assignee Title
CN104103388A (en) * 2014-07-25 2014-10-15 广东海鸿变压器有限公司 Paint dipping technology of insulation paper
JP2016167528A (en) * 2015-03-10 2016-09-15 株式会社日立製作所 Stationary induction electric machine and manufacturing method of same
CN106373752A (en) * 2016-11-17 2017-02-01 贵州栢通科技有限责任公司 Low-voltage winding of dry type transformer
CN106847483B (en) * 2017-03-29 2018-08-07 广东敞开电气有限公司 Dry-type transformer coil coiling method
CN106816290B (en) * 2017-03-29 2018-08-10 广东敞开电气有限公司 Dry-type transformer coil and its winding method
CN109494050A (en) * 2018-12-22 2019-03-19 泰州市天力铁芯制造有限公司 A kind of transformer core
CN112735777A (en) * 2020-12-22 2021-04-30 上海置信智能电气有限公司 Insulation device for open dry-type transformer and open dry-type transformer
CN112786293A (en) 2021-01-07 2021-05-11 海鸿电气有限公司 Waterproof transformer coil structure and manufacturing method thereof
CN113421770B (en) * 2021-06-30 2022-09-06 保定天威集团特变电气有限公司 Spiral coil anti-rebound method
CN113643894B (en) * 2021-08-12 2023-12-26 天长市日上电子科技有限公司 Transformer coil paint dipping device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100638649B1 (en) * 2006-06-27 2006-10-31 신한전기공업주식회사 Dry type transformer having insulation reinforcement
KR100640713B1 (en) 2006-07-20 2006-11-01 신한전기공업주식회사 Dry type transformer having coil protection materials and manufacturing method thereof
JP2009064941A (en) * 2007-09-06 2009-03-26 Nichicon Corp Three-phase dry-type transformer

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1739246A (en) * 1926-11-10 1929-12-10 Majce Johann Method of manufacturing wire coils
US2498747A (en) * 1944-09-20 1950-02-28 Mcgraw Electric Co Electromagnetic device and method of making the same
US2544871A (en) * 1947-04-24 1951-03-13 Mcgraw Electric Co Three-phase transformer
US2632041A (en) * 1950-02-11 1953-03-17 Gen Electric Transformer cooling duct construction
US2918639A (en) * 1957-05-15 1959-12-22 Gen Electric Spacer for electrical windings
US2959754A (en) 1957-12-24 1960-11-08 Gen Electric Canada Electrical reactor
US3307247A (en) * 1964-02-12 1967-03-07 Wagner Electric Corp Method of winding coils
US3683495A (en) * 1971-02-04 1972-08-15 Westinghouse Electric Corp Method of making disk-type windings for electrical inductive apparatus
DE2226114B2 (en) 1972-05-29 1977-12-22 Transformatoren Union Ag, 7000 Stuttgart Open type dry transformer with axial air cooling channel - has additional winding sections with excess heat dissipated evenly on outer surface
US4219791A (en) * 1978-11-24 1980-08-26 Westinghouse Electric Corp. Electrical inductive apparatus
US4321425A (en) 1979-02-02 1982-03-23 Emmel Leroy L Lattice cable and composite dielectric transmission line and method of making same
JPS5741636U (en) * 1980-08-20 1982-03-06
JPS6022491B2 (en) * 1980-11-12 1985-06-03 三菱電機株式会社 Manufacturing method of molded coil
JPS59150405A (en) * 1983-02-10 1984-08-28 Toshiba Corp Normal-conductive coil and manufacture of the same
JPH02222511A (en) * 1989-02-23 1990-09-05 Showa Electric Wire & Cable Co Ltd Manufacture of heat-resisting coil
DE9013059U1 (en) 1990-09-13 1992-01-16 Mwb Messwandler-Bau Ag, 8600 Bamberg, De
DE19801222A1 (en) 1998-01-15 1999-07-22 Helmut Dipl Ing Hinzen Air-cooled dry transformer
US6683524B1 (en) * 1998-09-02 2004-01-27 Hoeglund Lennart Transformer core
JP2001085246A (en) 1999-09-10 2001-03-30 Sansha Electric Mfg Co Ltd Coil
US6709615B2 (en) 2001-03-14 2004-03-23 Square D Company Method of manufacturing a comb for winding coils of a disk wound transformer
CN1641810A (en) 2004-01-11 2005-07-20 浙江沪光变压器有限公司 C-class non-sealed coil dry transformer
JP4622475B2 (en) * 2004-11-22 2011-02-02 ウシオ電機株式会社 Trance
US20080061919A1 (en) * 2006-03-22 2008-03-13 Marek Richard P Insulators for transformers
US7788794B2 (en) 2006-05-30 2010-09-07 Abb Technology Ag Disc-wound transformer with foil conductor and method of manufacturing the same
CN201196903Y (en) 2008-08-28 2009-02-18 广东海鸿变压器有限公司 Dry-type transformer coil
US20120139678A1 (en) 2010-12-03 2012-06-07 Abb Technology Ag Non-Linear Transformer with Improved Construction and Method of Manufacturing the Same
JP5760794B2 (en) * 2011-07-22 2015-08-12 Dic株式会社 Polyhydroxy compound, epoxy resin, thermosetting resin composition, cured product thereof and semiconductor sealing material
US8729998B2 (en) * 2012-06-06 2014-05-20 Abb Technology Three-step core for a non-linear transformer
CN202976913U (en) * 2012-11-23 2013-06-05 上海中马电磁线有限公司 Paper-coated insulated copper strip

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100638649B1 (en) * 2006-06-27 2006-10-31 신한전기공업주식회사 Dry type transformer having insulation reinforcement
KR100640713B1 (en) 2006-07-20 2006-11-01 신한전기공업주식회사 Dry type transformer having coil protection materials and manufacturing method thereof
JP2009064941A (en) * 2007-09-06 2009-03-26 Nichicon Corp Three-phase dry-type transformer

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CN204117812U (en) 2015-01-21
US9786427B2 (en) 2017-10-10
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ZA201409349B (en) 2015-12-23

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